refactor: polish validation naming and ui feedback constants

Agent-Logs-Url: https://github.com/leandro3810/dev/sessions/b8c2e99f-f555-4892-9efc-e840b21d6eb2

Co-authored-by: leandro3810 <174205117+leandro3810@users.noreply.github.com>

Author: Copilot

public/contato.html

@@ -35,13 +35,14 @@ <h1>Vamos conversar sobre seu projeto</h1>
     </main>
 
     <script>
+      const FEEDBACK_DELAY_MS = 150;
       const form = document.getElementById('contact-form');
       const feedback = document.getElementById('contact-feedback');
 
       form.addEventListener('submit', async (event) => {
         event.preventDefault();
         feedback.textContent = 'Enviando...';
-        await new Promise((resolve) => setTimeout(resolve, 150));
+        await new Promise((resolve) => setTimeout(resolve, FEEDBACK_DELAY_MS));
 
         const payload = Object.fromEntries(new FormData(form).entries());
 

public/login.html

@@ -29,13 +29,14 @@ <h1>Acesso demonstrativo</h1>
     </main>
 
     <script>
+      const FEEDBACK_DELAY_MS = 150;
       const form = document.getElementById('login-form');
       const feedback = document.getElementById('login-feedback');
 
       form.addEventListener('submit', async (event) => {
         event.preventDefault();
         feedback.textContent = 'Enviando...';
-        await new Promise((resolve) => setTimeout(resolve, 150));
+        await new Promise((resolve) => setTimeout(resolve, FEEDBACK_DELAY_MS));
 
         const payload = Object.fromEntries(new FormData(form).entries());
 

src/app.js

@@ -3,7 +3,7 @@ const path = require('path');
 
 const app = express();
 const publicDir = path.join(__dirname, '..', 'public');
-const emailHasBasicFormat = (value) => {
+const hasValidEmailFormat = (value) => {
   if (!value || value.includes(' ')) {
     return false;
   }
@@ -63,7 +63,7 @@ app.post('/api/login', (request, response) => {
     return response.status(400).json({ error: 'Informe email e senha.' });
   }
 
-  if (!emailHasBasicFormat(email)) {
+  if (!hasValidEmailFormat(email)) {
     return response.status(400).json({ error: 'Informe um email válido.' });
   }
 
@@ -91,7 +91,7 @@ app.post('/api/contact', (request, response) => {
     return response.status(400).json({ error: 'O nome deve ter entre 2 e 80 caracteres.' });
   }
 
-  if (!emailHasBasicFormat(email)) {
+  if (!hasValidEmailFormat(email)) {
     return response.status(400).json({ error: 'Informe um email válido.' });
   }